Drilling apparatus



Jan, 13. 1925.

F. R. JACK DRILLING APPARATUS Filed Aug. 21, 1922 Patented Jan. 13,1925.

UNITED STATES FRANK R. JACK, OF GARNETT, KANSAS.

DRILLING APPARATUS.

Application filed August 21, 1922.

To all whom it may concern:

Be it known that I, FRANK R. JACK, a citizen of the United States,residing at Garnett, in the county of Anderson and State of Kansas, haveinvented certain new and useful Improvements in a Drilling Apparatus, ofwhich the following is a specification.

This invention has relation to certain new and useful improvements indrilling apparatus and relates more particularly to well drills.

An object of the invention resides in the provision of a resilientmounting for the temper screw of a well drilling apparatus, so as toautomatically raise the temper screw when released after being loweredor screwed out.

A further object of the invention resides in the provision of aresilient mounting of the character stated which will provide 7 forautomatic raising of the temper screw with the saving of labor andstrain upon the apparatus and without materially increasing the cost ofthe drilling apparatus.

The invention has for a still further object the provision of aresilient mounting of the character stated for a temper screw of adrilling apparatus, which will be composed of the minimum number ofparts of simple construction and arrange ment and which will be highlyefficient in use when incorporated in the types of well drillingapparatus now in general use.

Still another object of the invention resides in the provision of atemper screw mounting of the character stated which will be placed understrain as the temper screw is screwed out and which will actautomatically to lift the temper screw when released, together with thecable clamps, after the temper screw has been wrung and the cable clampsreleased, thereby making it possible to dispense with the services of atleast one workman heretofore required and also reducing the load on theother workman or operator holding the clamps and relieving the temperscrew of a considerable amount of the strain to which it has beenheretofore subjected and permitting the temper screw to be raised inone-third of the time required by the present method employed.

WVith the foregoing and other objects which will appear as thedescription pro- Serial No. 583,242.

ceeds, the invention consists in the novel construction, combination andarrangement of co-operating elements as hereinafter more specificallyset forth, claimed and shown in the accompanying drawings forming a partof the present application and in which:

Fig. l is a plan vieW of the mounting forming the subject matter of thisinvention.

Fig. 2 is a side elevation of the parts shown in Fig. 1.

Fig. 8 is a front elevation of the parts shown in Figs. 1 and 2.

Referring more in detail to the drawings in which similar referencecharacters designate corresponding parts throughout the several views, 1indicates the Samson post or walking beam of a drilling apparatus, 2 hetemper screw and 3 the casing for the temper screw. The clamps 4 arealso shown in the drawings so that parties familiar with such apparatusmay understand clearly the application of the present invention. Thetemper screw 2 and the casing 3 therefore are of conventional form andthese parts are mounted on the slotted end of the beam 1 by the T-shapedsupporting bracket 5, the center member of which depends through theslot .6 in the end of the beam 1, as shown clearly in Figs. 1 and 3. Itwill be seen by referring to Fig. 3 that the depending center member ofthe T-shaped supporting bracket 5 extends into the upper end of thecasing 3. This view also discloses, together with Fig. 2, the oppositelydirected outstanding arms 7 carried by the upper portion of the casing3. Opposite ends of the cable 8 are connected with the arms 7, afterwhich the cable is extended upwardly and over the pulleys 9 carried inthe depending end portions of the cross member of the T-shapedsupporting bracket 5. The cable end portions then extend in asubstantially horizontal plane and pass around the rollers or guidepulleys 10 carried in the roller supporting members 11, which latter arepivoted upon the ends of the cross bar 12. These cable ends then connectwith the central portion of the cable which extends forwardly and passesaround the stationary guide roller 13 or pulley mounted on the upperface of the beam 1 near the slotted end thereof. This may be readilyunderstood by referring to Figs. 1 and 2.

- face thereof. A stationary enclosing and protecting casing 17 isprovided for the spring l lr and normally the spring ispractically-enclosed in thecasing 17 This casing 17 has both ends openand is secured 7 upon the upper face of the beam 1 by suitable securingmembers passed through the laterally extended ears 18 on opposite sidesof the spring casing 17 and near the ends thereof, as shown in thedrawings.

It is believed the complete mounting should now be apparent both inconstruction and operation, from the foregoinguparagraphs taken inconnection with the accompanying drawings. It may be briefly stated,however, that when the temj'perscrew is 'forced do'wn or sorewed'out inthe. usual manner, after fastening of the 'clamps4,the cable 8' will beoperated upon todraw the cross bar 12 toward the slotted end of the beam1 and thereby expand the spring 1 1. Therefore, when the clamps 4 arereleased, the spring 14 will immediately act to resiliently return thetemper screw to its raised or'normal position and retain the temperscrew in this'position until again operated. This resilient mounting ofthe temper screw will relieve the'same of considerable strain and reducethe labor and number of operators required for this oper ation tothe'minimum. ilt is believed that further description ofthe operation isunnecessary.

While the preferred embodiment of the invention has been shown anddescribed, it should be understood that minor changes in the details ofconstruction and arrangement of parts may be resorted to within thescope of what is claimed without departing from the spirit of 'th'einventi'oii.

'What is 'claimed is;

1JA 'resilient mounting 'for a temper screw of a drilling apparatuscomprising the combination with thetemper screw'an'd the supporting beamtherefor, "of a cable connected with said temper screw, asprin'g mountedon said beam, a cross bar carried by said spring, guide pulleys mountedonv said cross bar, a stationary guide pulley mounted'on saidbeam, saidcable being extended around said guide pul1eys,"and ajprotecting casingfor said spring. a

2. A resilijent mounting for the temper screw of a drilling apparatuscomprising the combination withqth'e temper screw, clamps and supportingbeam, ofim'eansfor mounting. said-temper screw on'one end'of said beam,asu'pporting spring connected by oneend with said' beam, anopenen'dedcasing for said spring, "means for securing said casing upon said beam,a cross-bar carriedby said spring, a flexible supporting memberconnected with said cross bar and.

with said temper screw, whereby said temper screw is resllientlyretained in lts normal raised-position, and guide members for saidfleXible supporting member.

In testimony whereof I, affix my signature.

FRANK J

